Add training workflow, datasets, and runbook
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Cl,apter 32: Structured Produds 631
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To remain neutral, one would have to keep computing the deltas of the options,
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both listed and imbedded, as time passes, because stock movements or the passage
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of time could change the deltas and therefore affect the neutrality of the position.
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HEDGING PERCS WITH COMMON STOCK
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Some traders may want to use the common stock to hedge the purchase of PERCS.
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These would normally be market-makers or block traders who acquire the PERCS in
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order to provide liquid markets or because they think they are slightly mispriced. The
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simplest way for these traders to hedge their long PERCS would be with common
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stock.
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This strategy might also apply to an individual who holds PERCS, if he wants to
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hedge them from a potential price decline but does not actually want to sell them (for
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tax reasons, perhaps).
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In either case, it is not correct to sell 100 shares of common against each 100
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shares of PERCS owned. That is not a true hedge. In fact, what one accomplishes by
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doing that is to create a naked call option. A PERCS is a covered write; if one sells
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100 shares of common stock from a covered write, he is left with a naked call. This
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could cause large losses if the common rallies.
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Rather, the proper way to hedge the PERCS with common stock is to calculate
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the equivalent stock position of the PERC S and hedge with the calculated amount of
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common stock. The example showed how to calculate the ESP of the PERCS: One
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must calculate the delta of the imbedded call option, which may be a long-term one.
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Then the delta of the PERCS can be computed, and the equivalent stock position can
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be determined.
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Example: V sing the same prices from the previous example, one can see how much
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stock he would have to sell in order to properly hedge his PERCS holding of 1,000
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shares.
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Assume XYZ is trading at 33, and the PE RCS has two years until maturity. If the
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PERCS is redeemable at 39 at maturity, one can determine that the delta of the
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imbedded option is 0.30 (see previous example). Then:
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Delta of PE RCS = 1 - Delta of imbedded call
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= 1- 0.30
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= 0.70
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Hence, the equivalent stock position of 1,000 PERCS is 700 shares (1,000 x
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0.10). 1 Consequently, one would sell short 700 shares of XYZ common in order to
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hedge this long holding of 1,000 PERCS.
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